Bluelab, INLINE pH electrode for Guardian INLINE

If you want to directly measure the pH in your substrate.
This pH sensor is used to measure the pH in:
water, soil or substrate (meadows, potted plants, gardens and nurseries)
or whether the pH value of the soil or substrate should be tested everywhere.

• Can be connected to all pH/combo meters with a BNC connection
• Can be used in water & all substrates: soil, coconut, rock wool, etc.
• Range: 0.0 - 14.0 pH
• 2 meter cable
• Made of strong plastic for long life
• Easy to clean
• Warranty ½ year